This is not just happening to Los Pollos. iMonetizeit or any other dating network would have the same issue with SOI/ DOI/ CPL type of offer. Advertisers are tightening their requirements and EXPECTS sales aka revenue. The good old days where advertisers pay well for SOI/ DOI/ CPL are gone (at least for now). If you are focusing on dating offer, try to work on CPS offer and expect payment of at least $40 or more per conversion. CR rate will be very low (about 0.02%) but at least you can whitelist on specific traffic source that is giving you sales instead of simply sending traffic blindly to a smartlink, expecting conversions that never happens.
In the past, the advertisers can afford to pay high and provide easy conversion because they are making tons of profit with their fake dating sites and getting visitors to do CC submit and rebilling (all sorts of dirty tricks). Nowadays, this is getting harder and alot of these advertisers are from Russia. With the current financial sanction on the country, it is very difficult for advertisers to transact and even pay for their advertising bill with countries that are sanctioning them.